Construction and characterization of a gold nanoparticle wire assembled using Mg2+-dependent RNA-RNA interactions

Nano Lett. 2006 Mar;6(3):445-8. doi: 10.1021/nl052316g.

Abstract

Magnesium-ion-mediated RNA-RNA loop-receptor interactions, in conjunction with gold nanoparticles derivatized with DNA, have been used to make self-assembled nanowires. A wire located between lithographically fabricated nanoelectrodes is demonstrated that exhibits activated conduction by electron hopping at temperatures in the 150-300 K range. These techniques have the ability to link particles between devices and in the future may be used to assemble practical circuits.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Base Sequence
  • Cations, Divalent / metabolism
  • Dimerization
  • Gold / chemistry*
  • Magnesium / metabolism*
  • Microscopy, Electron
  • Nanostructures / chemistry*
  • Nanostructures / ultrastructure
  • Nucleic Acid Conformation
  • RNA / chemistry*
  • RNA / metabolism*
  • RNA / ultrastructure

Substances

  • Cations, Divalent
  • RNA
  • Gold
  • Magnesium